Some accomplish this via natural ingredients—like saline—while ... how do you choose the best nasal spray for your allergies? The good news is that most over-the-counter nasal sprays are ...

Nicotine inhalation system 10mg (4mg delivered); per cartridge; contains menthol. Each cartridge ... of 49ng/mL reached within 15 minutes. Nasal spray: maximum venous concentrations of 2–12ng ...

Scientists at Harvard Medical School have developed a simple nasal spray, made of harmless ingredients, that they reckon can ...